Fuel vaporizer



A. P. PLAUT FUEL VAPORIZER July 16, 1929.

2 Sheets-Sheet Original Filed Aug. 22. 1921 3mm Ania/)6 Z p/aaf attomwqo July 16, 1929. A. P. PLAUT FUEL VAPORIZER Original Filed. Aug. 22. 1921 2 Sheets-Sheet awe M 0: Aniocha f t/ad I annua s n v 1) l) Patented July '16, 1929.

srarss mes Fries.

ANTOINE P. PLAUT, OF FLINT, MICHIGAN, ASSIGNOR- OF ONE-HALF TO ROBERTS BRASS MANUFACTURING COMPANY, OF DETBGIT, MICHIGAN, A CORPORATION OF MICHI- GAN.

Application filed August 22, 1921, Serial FUEL VAPORIZER.

Theinvention relates to fuel Vaporizers and has for its ob ect the provision of a device which is simple in construction and Wl11Cl1 will vaporize the liquid fuel in the explosive mixture passing therethrough. With this ob 'ject as well as resides in the novel features of con as more fully hereinafter set forth In the drawings:

Figure l is a top plan view of a fu izer embodying my invention;

others in view, the invention struction el vapor- Figures 2 and 3 are respectively cross sections on the lines 2 2 and 3-3 of Figure l;

1 is the body of the fuel vaporizer having the spaced inner and outer walls 2 and 3. re-

spectively and the bottom and top walls at and 5 respectively at the inlet and outle the device.

adapted for the t ends of These walls inclose a chamber 6 passage of a heating fluid,

which in the present instance is the exhaust gases from the internal combustio to which the device 18 applied. The

n engine chamber 6 is provided witlran inlet passageway 15 adapted to be connected to the sour 'ce of'exhaust gases and is provided with an outlet passageway 16 having therein a throttle valve 19 for controlling the flow of exhaust gases through the device. The inner wall 2 forms "the passageway Tadapted for the passage of the explosive mixture of air and liquid fuel and the inlet and. outlet ends 8 and 9 of this passageway are of substantially ,the same cross sectional area as the carburetor outlet and the intake manifold inlet, the portion of the passageway 1ntern1ediate its ends be ing enlarged. The inlet end wall 42 has the flange 10 extending inwardly ner wall 2 to form the ledge any liquid fuel which drops plosive mixture passing through the beyond the in- 11 upon which out of the ex passageway 7 will rest while the outlet end wall 5 has the tapering surface 12 which tapers in the same direction as that taken by the explosive mixture.

Arranged within the enlarged portion of the passageway 7 are the 13 which extend transversely of the way and connect into the inner wall ends. These ba-fl'le plates are prefer integral with the inner wall so that be more readily conducted thereinto spaced baflle plates passage- 2 at their ably cast heat will from the No. 494,360. Renewed October 19, 1928.

inner wall. The bafile plates diverge from each other in the direc ion taken by the explosive mixture passing through the device so that in operation the explosive mixture of air and fuel upon being drawn through the passageway 7 will strike the bafiie plates as well as the inner wall which being heated will vaporize the particles of fuel thereby forming a more homogeneous mixture. Any particles of fuel which drop out of the mixture passing along the inner wall will finally come to rest upon the ledge 11 which being heated will vaporize these particles. Furthermore, since the cross sectional area of the space between the baffle plates at their upper edges is larger than that between the bafile plates at their lower edges, the velocity of that portion of the mixture of air and fuel which passes between the lower edges of the battle plates is much less in the space between the upper edges of the baffle plates so that at least some of the particles of fuel will drop back upon the baffle platcswhic-h being these particles after which they will again enter the mixture and pass out of the device.

*vVhat I claim as my invention is:

l. In a fuel vaporizer, the combination with a fuel mixture conduit, and means for heating the walls thereof, of a pair of partition walls extending longitudinally within said conduit forming three separate passageways for the fuel mixture, said partitions being in heat conducting contact with said heated walls and being arranged to diverge in the direction of flow ofthe mixture to progressively enlarge the passageway intermediate said partitions.

2. In a fuel vaporizer, the combination with a fuel mixture conduit having inlet and outlet openings and an enlarged chamber in termediate the same, of a pair of partition walls extending longitudinally of said conduit within said enlarged chamber forming three separate passageways for the fuel mixture, said partitions being in heat conducting contact with said conduit and being arranged to diverge in the direction of flow of said mixture to progressively enlarge the central of said passageways.

3. In a fuel vaporizer, the combination with a vertical cylindrical conduit, having an inlet opening at the bottom and an outlet opening at the top and an enlarged intermediate cylindrical chamber, a passageway for a heating medium surrounding said con- 5 duit, a pair of plates extending throughout the length of said enlarged chamber dividing the same into three passageways, said plates being integral with said conduit and being spaced closer together at the lower end than at the upper end whereby the central of said passageways is progressively expanded in the direction of flow.

In testimony whereof I afiix my signature.

ANTOINE P. PLAUT. 

